Bug#28149 overflow in some "SHOW STATUS"-variables

changed bytes_received, bytes_sent status variables to longlong

sql/mysqld.cc

@@ -6190,8 +6190,8 @@ struct show_var_st status_vars[]= {
   {"Aborted_connects",         (char*) &aborted_connects,       SHOW_LONG},
   {"Binlog_cache_disk_use",    (char*) &binlog_cache_disk_use,  SHOW_LONG},
   {"Binlog_cache_use",         (char*) &binlog_cache_use,       SHOW_LONG},
-  {"Bytes_received",           (char*) offsetof(STATUS_VAR, bytes_received), SHOW_LONG_STATUS},
-  {"Bytes_sent",               (char*) offsetof(STATUS_VAR, bytes_sent), SHOW_LONG_STATUS},
+  {"Bytes_received",           (char*) offsetof(STATUS_VAR, bytes_received), SHOW_LONGLONG_STATUS},
+  {"Bytes_sent",               (char*) offsetof(STATUS_VAR, bytes_sent), SHOW_LONGLONG_STATUS},
   {"Com_admin_commands",       (char*) offsetof(STATUS_VAR, com_other), SHOW_LONG_STATUS},
   {"Com_alter_db",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_DB]), SHOW_LONG_STATUS},
   {"Com_alter_table",	       (char*) offsetof(STATUS_VAR, com_stat[(uint) SQLCOM_ALTER_TABLE]), SHOW_LONG_STATUS},

sql/sql_class.h

@@ -606,8 +606,8 @@ struct system_variables
 
 typedef struct system_status_var
 {
-  ulong bytes_received;
-  ulong bytes_sent;
+  ulonglong bytes_received;
+  ulonglong bytes_sent;
   ulong com_other;
   ulong com_stat[(uint) SQLCOM_END];
   ulong created_tmp_disk_tables;

sql/sql_show.cc

@@ -1463,6 +1463,8 @@ static bool show_status_array(THD *thd, const char *wild,
         case SHOW_LONG_CONST:
           end= int10_to_str(*(long*) value, buff, 10);
           break;
+        case SHOW_LONGLONG_STATUS:
+          value= ((char *) status_var + (ulonglong) value);
         case SHOW_LONGLONG:
           end= longlong10_to_str(*(longlong*) value, buff, 10);
           break;

sql/structs.h

@@ -190,7 +190,8 @@ enum SHOW_TYPE
   SHOW_NET_COMPRESSION,
   SHOW_RPL_STATUS, SHOW_SLAVE_RUNNING, SHOW_SLAVE_RETRIED_TRANS,
   SHOW_KEY_CACHE_LONG, SHOW_KEY_CACHE_CONST_LONG, SHOW_KEY_CACHE_LONGLONG,
-  SHOW_LONG_STATUS, SHOW_LONG_CONST_STATUS, SHOW_SLAVE_SKIP_ERRORS
+  SHOW_LONG_STATUS, SHOW_LONG_CONST_STATUS, SHOW_SLAVE_SKIP_ERRORS,
+  SHOW_LONGLONG_STATUS
 };
 
 enum SHOW_COMP_OPTION { SHOW_OPTION_YES, SHOW_OPTION_NO, SHOW_OPTION_DISABLED};